Right and left hand side and turning tool.



.T. G. BAKER.

RIGHT AND LEFT HAND SIDE AND TURNING TOOL.

APPLICATION FILED MAR. 8, 1911.

Patented Dec. 12, 1911.'

PLANOGRAPH \ZO-JVASHINUTON. D. C.

UNITED STA JOSEPH G. BAKER, 0F VINELAND, NEW JERSEY.

RIGHT AND LEFT HAND SIDE AND TURNING TOOL.

Specification of Letters Patent.

Application filed March 8, 1911.

Patented Dec. 12, 1911.

Serial No. 613,019.

To all whom it may concern:

Be it known that I, JOSEPH G. BAKER, a

citizen of the United States, residing at Vineland, in the county ofCumberland and State of New Jersey, have invented a certain new anduseful Improvement in Right and Left Hand Side and Turning Tools, ofwhich the following is a specification.

My invention relates to new and useful improvements in right and lefthand side and turning tools, and has for its object to provide a tool ofthis character which will be simple in construction, inexpensive in thecost of manufacture and will save considerable expense and time used ingrinding and forging tools of this character.

A further object of this invention is to provide a tool which may beplaced in the tool post in pairs, the co-acting surfaces being producedat such an angle to the edges that when placed in the tool post saidedges are engaged by the screw and bottom wall of the receiver of thetool post, the tools will be forced to one side so that the lower cornerbetween an edge and side face will be forced against one side of thetool post, and the diagonally opposite corner or the same corner of theother tool will be forced against the opposite side of the tool post,thus fastening the tools in such a position as to form a clearancebetween its outer upper face and the work. The working edge of the toolextends beyond the lower edge of the tool, thus providing a clearancebetween the non-working part of the tool and the work.

With these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, I will describeits construction in detail, referring by letter to the accompanyingdrawing forming a part of this specification, in which Figure 1, is anend view of a pair of tools, showing them in place in a tool post. Fig.2, a similar view of a pair of tools before being forced to the side bythe screw of the tool post. Fig. 3, a side elevation of a pair ofturning tools. Fig. 4, a plan or edgeview thereof. Fig. 5, a sideelevation of a pair of side tools, and Fig. 6, a plan or edge Viewthereof.

In carrying out my invention as here embodied, A. and A representsimilar tools usedin pairs as plainly shown by the drawings in reversepositions, so that their beveled faces B lie against one another orcoact. The edge of each of these faces is also beveled as at C, slantingoutward away from the non-beveled face D of the tool, so that when apair of said tools are placed in the opening of the tool post F and thescrew G of said tool post screwed down until it engages said tools, thelatter because of their beveled edges C and beveled faces B, will beforced against the sides of the tool post until the non-beveled sides ofthe tools rest at an angle to the walls of the tool post, wedging theupper edge of one tool and the opposite lower edge of the adjacent toolagainst the side walls of the tool post, as well as the bottom thereoffor holding the tools exceedingly firm, thus forming a clearance betweenthe tool and the work, which is equal to the space H between thesidewall of the tool post and the lower edge of the tool, since theupper edge or working portion of the tool is lying against the side wallof the tool post. The tools have their ends beveled inward and downwardas at I, when taken with relation to the position the tools assume whilein use, thus producing a clear ance between the lower edge of the tooland the work. In the turning tools the same object is accomplished in asimilar manner, the only difference being the shape of the upper outerends of the tools. Each end of the tool is beveled inward as beforedescribed so that when used one way it is a right hand tool and whenreversed it is a left hand tool. Then by inverting the pair of tools theother tool may be used at one end, and by reversing the tools again theouter end of the same tools may be used, thus we have four cutting edgesby the use of two tools, a pair of left hand and a pair' of right handtools. It will be understood that in practice the beveled faces may bemade greater or less, producing a greater or less clearance between thework and the too s.

From the foregoing it will be noticed that a tool made in the mannerdescribed, producing a sufficient clearance to prevent any interferencewith the work from the tool along its lower edge, either at the side orend, and it produces an inexpensive tool which is reversible andinvertible, thus forming four working edges, two of which are lefthanded and two right handed, and a tool formed in this manner requiresvery little grinding and forging and can be used for a considerablelength of time with a very small amount of waste.

Of course I do not wish to be limited to the exact details ofconstruction as here shown, as these may be varied within the limits ofthe appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new anduseful, is-

1. A tool consisting of two sections, each of said sections having anon-beveled face, a beveled face and a beveled edge, the sections beingso placed together as to slide upon each other and be forced out of thevertical line by the pressure of a tool post screw.

2. A tool consisting of two sections, each of said sections having anon-beveled face, a beveled face and a beveled edge, one of saidsections being in an inverted position to the other when placed side byside in a tool post, the screw of said tool post forcing the lower edgeof one section against the side wall of the tool post, and the upperedge of the opposite section against the opposite side wall of the toolpost, forcing the non-beveled faces of the sections to an angle inrelation to the side walls of the tool post for producing a clearancebetween the tool and the work below the edge of the former.

In testimony whereof, I have hereunto aiiiiied my signature in thepresence of two subscribing witnesses.

JOSEPH c. BAKER. Witnesses EDW. W. AUSTIN, M. E. Yos'r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

